Attachment for filling machines



Oct. 13, 1942. B. & JOHNSON 2,299,064

ATTACHMENT FOR FILLING MACHINE Original Filed Nov. 10, 1937 Patented Oct. 13, 1942 ATTACHMENT FOR FILLING MACHINES Bror Anders Emil Johnson, Alsten, Sweden, as-

signor to Aktiebolaget Gerh. Arehns Mekaniska Verkstad, Stockholm,

company of Sweden Sweden, a joint-stock Original application November 10, 1937, Serial No. 173,921. Divided and this application June 11, 1940, Serial No. 339,991. In Sweden November 14, 1936 Claims.

This application is a division of my application, Serial No. 173,921, for Apparatus for filling containers, filed November 10, 1937, which has issued as Patent No. 2,210,456, dated August 6, 1940.

This invention relates to improved mechanism for removing excess material from the upper surfaces of filled containers and for providing smooth upper surfaces on material in the containers.

Referring to the drawing:

Fig. l is an elevational view, partly in section, of an embodiment of the invention; and

Fig. 2 is an elevational side View of part there- In the drawing numeral l designates a filled pot which has been conveyed laterally from a filling station (not shown) and placed into position upon a carrier plat 49 below a smoothing device. Said device has a head provided with a smoothing plate 34 and two scraper plates 35 which engage opposite sides of plate 34 so that the plate 34 is located within a space between the inner edges of the plates 35. Each of the plates 35 is secured to an arm 35. The arms 36 are pivoted to a yoke 31 that is secured to a sleeve 39, and they are urged inwards against the late 34 by means of a tension spring 38 which interconnects them. As shown in Fig. 2, the bottom edge of the plate 34 has a contour that corresponds to the shape of the upper part of the pot, i. e., it has two recesses 99 adjusted to receive and engage the upper rim of the pot and make th plate 34 project definitely into the pot as shown in Fig. 2. The plate 34 is secured to a spindle 49 that is movable longitudinally within the sleeve 39. A ring 4| is movable longitudinally upon the sleeve 39 and a pin 42 projects transversely through the ring 4| and two opposite longitudinal slots 43 in the sleeve as well as through the spindle 49, so that the ring 4| is secured to the spindle 49 and so that the said ring can move the spindle longitudinally within the sleeve 39. An arm 44 straddle the ring 4| and is secured to a turnably journalled rock shaft 45. The sleeve 39 which is axially supported by a bearing 43 has a small pinion 41 which meshes with a larger gear wheel 48 that is secured to a shaft 63. The shaft 66 may be operably connected to the means conveying the filled pots from the filling station to the smoothing station so as to be rotated intermittently in timed relation to the mechanism for driving the conveyor and to mechanism for elevating the pot l and opeiating the rock shaft 45. The carrier plate 49 is mounted on a spindle 6'! which is mounted slidably in a sleeve 59. A contractile spring 93 is inserted into said sleeve and urges the plate 49 upwards, so that a pin 10, inserted transversely into the spindle 61, will rest on the sleeve 68 at the top of longitudinal slots ll provided in the said sleeve.

In operation, the carrier plate 49 lifts the pot I so that the upper rim of the latter engages the plate 34 which is then rotated relatively rapidlyby means of the gear 41,, 4B. When the pot I is pressed against the plate 34 the spring 69 is contracted slightly. Then the arm 44 slowly lifts the revolving spindle and plate 34, whereby the plate 49 ascends until the pin 19 hits the sleeve 63. The arm 44 continues to lift the still revolving plate 34, so that the latter is slowly retracted from the pot l and an even smoothing of the upper surface of paste is obtained. Thereafter, the carrier plate 49 is retracted, so that the pot is lowered to a level with the tabl 33, whereafter the pot is removed from the carrier plate. When the carrier plate 49 is lowered, the smoothing plate 34 is pulled upwards between the scraper plates 35 by the arm 44, so that paste adhering to the plate 34 will be removed therefrom and stick to th plates 35. Suitably, another scraper plate 55 is connected to driving means that move said plate over both the scraper plates 35 to remove paste from them and discharge such paste into a receptacl 80. The scraper plate 55 is supported in a guide 16 and pivotally connected to a lever arm 1! which is secured to a rock shaft 18. The rock shaft is connected to a driving mechanism that is operably connected to the shaft to impart to the shaft 18 a rapid reciprocating movement over the bottom face of the plates 35 when the plate 34 has been lifted, so that its lower edge is at a level with, the bottom surface of the plates 35. A rod 8| is arranged to be moved up and down as well as to be reciprocated together with the plate 55. When the plate has been moved over the bottom faces of the plates 35 and has obtained its end position at the receptacle 8!] the rod Bl will be moved slightly upwards, so that the plate 55 is pivoted about the pin 82 and engages the receptacle 8!], so that paste adhering to the plate 55 will be scraped off and dropped into the receptacle 80. The upper end of the rod 8| forms the guide 16.

I claim:

1. In a machine for filling containers, a head having a wiping member for sweeping off excess and smoothing the surface of material supplied to the container, a support for the container arranged opposite to said head, and means for relatively rotating said support and said member,

said member being movabl up and down within said head to transfer excess of material from the container to the bottom surface of said head.

2. In a machine for filling containers, a head having a wiping member for sweeping off excess and smoothing the surface of material supplied to the container, a support for the container arranged opposite to said head, means for relatively rotating said support and said member, said member being movable up and down within said head to transfer excess of material from the container to the bottom surface of said head, a scraper member, and means for moving said scraper member over the bottom surface of said head.

3. In a machine for filling containers, a head having a wiping member for sweeping off excess and smoothing the surface of material supplied to the container, a support for the container arranged opposite to said head, means for relatively rotating said support and said member, said member being movable up and down within said head to transfer excess of material from the container to the bottom surface of said head, a scraper member, means for moving said scraper member over the bottom surface of said head, and a receptacle arranged below the path of movement of said scraper member for receiving material scraped off said head.

4. In a machine for filling containers, a head having a wiping member for sweeping off excess and smoothing the surface of material supplied to the container, a support for the container arranged opposite to said head, means for relatively rotating said support and said member, said head having two scraper members arranged to engage opposit sides of said smoothing member, and means for moving said smoothing member up and down between said scraper members to transfer excess of material from the containers to the bottom surface of said head.

5. In a machine for filling containers, a head having a wiping member for sweeping off excess and smoothing the surface of material supplied to the container, a support for the container arranged opposite to said head, and means for relatively rotating said support and said member, said member being movable up and down within said head to transfer excess of material from the container to the bottom surface of said head, said wiping member having a central portion adapted to project into the container when said member rests upon the rim of the opening of the container.

BROR ANDERS EMIL JOHNSON. 

